<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <!-- 下拉菜单 -->
    <select>
        <option>北京</option>
        <option>上海</option>
        <option selected>郑州</option>
        <option>武汉</option>
        <option>深圳</option>
    </select>
    <br><br>
    <!-- 文本域 -->
     <textarea>请输入内容：</textarea>
     <!-- leable标签——增大点击范围 -->
      <br><br>
    性别：
     <input type="radio" name="gender" id="man"> <label for="man">男</label> 
     <label> <input type="radio" name="gender">女</label>
     <br><br>
     <!-- 按钮 -->
     <form action="">
         用户名：<input type="text">
         <br><br>
         密码：<input type="password">
         <br><br>
         <button type="submit">提交</button>
         <button type="reset">重置</button>
         <button type="button">普通按钮</button>
     </form>
</body>
</html>